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FRA1PR > WXSAT 14.03.13 02:02l 414 Lines 13419 Bytes #999 (0) @ WW
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Sent: 130304/1816Z 14828@FRA1PR.FMPACA.FRA.EU.WW [14829] FBB7.01.35 alpha $:148
From: FRA1PR@FRA1PR.FMPACA.FRA.EU.WW
To : WXSAT@WW
WEATHER SATELLITES
===============
POLAR APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
==============================================
Author : Douglas S Deans.
E-mail : dsdeans@...
Twitter : Douglas Deans @GM4VZY
Sections 3 and 4 have updates.
SECTION 1: POLAR APT/LRPT REPORT – 4th March 2013
==========================================
Satellite Frequency (MHz) Status Image Quality
NOAA 15 137.620 (APT) on good. See Note 8.
NOAA 17 137.500 (APT) on No images. See Notes 7&8.
NOAA 18 137.9125 (APT) on good
NOAA 19 137.100 (APT) on good but see Note 6
Metop-A 137.100 (LRPT) off see Note 3
Metop-B No LRPT service
Meteor M N1 137.100 (LRPT) sporadic see Note 6
CHANGES SINCE LAST REPORT.
None.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
NOTES.
1. Three of the older NOAA weather satellites which have been
decommissioned and are tumbling freely are known to sporadically put out
a carrier on 137.500 MHz. The satellites are TIROS-N, NOAA 6 and NOAA 9
When the relevant footprints overlap this will cause interference to
NOAA 17 when active on this frequency.
--- 20th May 2011 update for NOAA 9. ---
Sadly although no signals had been heard from NOAA 9 since October 2010,
I have received 2 reports from Mike Piper and Mike Kenny confirming that
NOAA 9 is back. Of course the only other APT satellite on 137.500 MHz
is NOAA 17 with its stalled scan motor so the interference is not a
problem. My thanks to Mike and Mike for the reports.
2. NOAA 16's APT transmission system failed a few months after launch.
3. Metop-A's A-side LRPT transmitter has failed. Currently the redundant
B-side transmitter is off until further notice (No further service
expected due to interference with HIRS instrument).
4. NOAA 14 was decommissioned on 23rd May 2007.
5. NOAA 12 was decommissioned on 10th August 2007.
6. Signals have been reported from Meteor M N1 but they are
sporadic with periods off. Although classed as LRPT it does not
conform to the CGMS standard.
During in-fill carrier phase this satellite can cause interference to
NOAA 19 when footprints overlap.
7. NOAA 17 has scan motor problems with rising motor currents.
Constant rephase by the MIRP was causing data dropouts on all the HRPT
stream and APT and GAC derivatives.
Auto re-phase has now been disabled and the resulting AVHRR products are
almost all unusable. Daily MIRP rephasing via the Stored Command Table
began on 18 May 2010 (10/138) - at the first pass over the South Pole
each day.
Update 29/09/10 :- Further deterioration in scan motor performance with
no useable data from the AVHRR instrument. Scan motor has stalled.
8. As of 12th October 2010 at 15.00 UTC the following APT frequencies
applied :-
NOAA 17 137.500 MHz.
NOAA 15 137.620 MHz.
9. Elements are available from :-
http://www.space-track.org and
http://celestrak.com/NORAD/elements/
LAUNCHES.
None expected.
SECTION 2: POLAR HRPT/AHRPT REPORT – 4th March 2013
=============================================
CHANGES SINCE LAST REPORT.
None.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
Satellite Frequency Antenna Mode Image Quality
(MHz)
NOAA 15 1702.5 Omni HRPT Weak
NOAA 16 1698.0 RHCP HRPT Good ( note 3)
NOAA 17 1702.5 Omni HRPT No images. See note 7.
NOAA 18 1707.0 RHCP HRPT Good
NOAA 19 1698.0 RHCP HRPT Good
Feng Yun 1D 1700.4 RHCP CHRPT Off (see Note 9.)
Feng Yun 3A 1704.5 see note 5.
Feng Yun 3B 1704.5 see note 5.
Metop-A 1701.3 RHCP AHRPT Good (note 4)
Metop-B 1701.3 RHCP AHRPT Good.
Meteor M N1 1700 See note 6.
NPP see Note 8.
NOTES.
1. NOAA 14 was decommissioned on 23rd June 2007.
2. NOAA 12 was decommissioned on 10th August 2007.
3. On Friday 19th September 2003 NOAA 16 developed AVHRR synch. problems
similar to those on NOAA 14 (and previously NOAA 15).
Since then reports have been mixed. Some periods of good data, some
poor.
Update 31st March 2012 :- After a short period of poorer images,
with signs of judder, there have been improvements in the scan motor
performance. Please see :-
http://tech.groups.yahoo.com/group/weather-satellite-reports/message/2649
4. On 25 May 2009, Eumetsat extended the coverage of the Advanced High
Resolution Picture Transmission (AHRPT) system on Eumetsat's Metop-A
polar-orbiting satellite. The improved service provides additional
coverage over the Gulf of Mexico and Indian Ocean regions.
For more information, please see:
http://www.eumetsat.int/Home/Main/Media/Features/710601
5. Feng Yun 3A was declared operational on 12th January 2009.
I am also grateful to Dave Wright of Dartcom for confirming that
unfortunately (as usual) the Chinese have not strictly complied with the
CGMS AHRPT Global Standard so reception using a standard Metop AHRPT
receiver is not possible.
Update: The second in the series, Feng Yun 3B was launched on
4th November 2010. I expect the information above for 3A will
equally apply to 3B.
My thanks to Johnny Lin for drawing this to my attention.
6. It appears that Meteor M N1 is neither using full HRPT or AHRPT and
cannot be received using current receivers. Please see other WSR mails
for further explanation :-
http://tech.groups.yahoo.com/group/weather-satellite-reports/message/2098.
Continual sporadic problems with transmission.
7. NOAA 17 has scan motor problems with rising motor currents.
Constant rephase by the MIRP was causing data dropouts on all the HRPT
stream and APT and GAC derivatives.
Auto re-phase has now been disabled and the resulting AVHRR products are
almost all unusable.
Daily MIRP rephasing via the Stored Command Table began on 18 May 2010
(10/138) - at the first pass over the South Pole each day.
Update 29/09/10 :- Further deterioration in scan motor performance with
no useable data from the AVHRR instrument. Scan motor has stalled.
8. As this weather satellite has no S-band transmitter, it is included for
information only.
9. Update 20th April 2012 :- I am grateful to Roland Ertl and Dave Wright
for confirming loss of images from FY-1D.
LAUNCHES.
None expected.
SECTION 3: GEOSTATIONARY REPORT – 4th March 2013
==========================================
CHANGES SINCE LAST REPORT.
None
THIS WEEK'S POSSIBLE EVENTS.
Meteosat 8 (RSS) starts 5th March.
Meteosat 9 (RSS) parallel operation starts 5th March.
Europe & Africa
------------------
Satellite : Meteosat 8 (3.5°E)
Data : HRIT (digital) and LRIT (digital).
Operational : No, RSS.
Satellite : Meteosat 9 (9.5° E) (note 6).
Data : HRIT (digital) and LRIT (digital)
Operational : No. Standby.
Satellite : Meteosat 10 (0°).
Data : HRIT (digital) and LRIT (digital).
Operational : Yes.
North America
----------------
East.
Satellite : GOES 13 (75° W).
Data: GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational: Yes.
West.
Satellite : GOES 15 (135°W).
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational : Yes.
Satellite : GOES 14 (105°W).
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational: No. Standby satellite.
South America
----------------
Satellite : GOES 12 (60°W)
Data : GVAR (digital) - 1685.7 MHz
Operational : Yes on South American project.
Asia (Russian Operated Satellite)
--------------------------------------
Satellite : ELECTRO-L (76° E)
Data : HRIT/LRIT.
Operational : Yes.
Asia (European Operated Satellites)
----------------------------------------
Satellite : Meteosat 7 (57.5°E)
HRI (digital) - 1691 MHz
Wefax (analogue) occasionally for ranging purposes
only.
Operational : Yes.
Asia (Indian Operated Satellite)
--------------------------------
Satellite : Metsat
Data : None available.
Operational : Yes.
Satellite : Insat 3A (Note 2.)
Data : VHRR (digital) 2599 MHz
Operational : Yes.
Asia (Korean Operated Satellite)
-----------------------------------
Satellite : COMS (128.2° E)
Data : HRIT (digital) and LRIT (digital)
Operational : Yes.
Asia & Oceania (Japanese Operated Satellites)
------------------------------------------------
Satellite : MTSAT-1R (140° E) (note 4.)
Data : HRIT (digital) - 1687.1 MHz.
LRIT(digital) - 1691 MHz.
(Note 5.)
Operational : yes
Satellite : MTSAT-2 (145º E).
Data : HRIT (digital) - 1687.1 MHz
LRIT(digital) - 1691 MHz.
Operational : Yes
Asia & Oceania (Chinese Operated Satellites)
----------------------------------------------------
Satellite : Feng Yun 2D (86.5°E).
Data : SVISSR (digital) and LRIT (digital)
Operational : Yes.
Satellite: Feng Yun 2E (104° E).
Data : SVISSR (digital) and LRIT (digital)
Operational : Yes.
NOTES.
1. Meteosat 7 stopped its 0° service at 09.00 UTC on 14th June 2006.
2. Insat 3A is a combined data and meteorological satellite.
3. For those interested in EMWIN data, the following sats/frequencies
apply.
GOES 15 (135 W) 1692.700 MHz
GOES 13 (75 W) 1692.700 MHz
For further info. there are many sources but the following is
particularly informative:-
http://iwin.nws.noaa.gov/emwin/user-intro.htm
4. This satellite is also known as HIMAWARI 6.
5. HiRID and WEFAX was discontinued on 12th March 2008. It was replaced
with HRIT/LRIT (after many months of dual dissemination).
6. Only LRIT (1691.0 MHz) is provided in direct readout.
Full HRIT and LRIT service from Eumetcast.
LAUNCHES.
Japanâ€Ös Himawari-8 launch due 2014 (follow on to MTSAT).
SECTION 4: EUMETCAST REPORT – 4th March 2013
======================================
Service Status Eurobird 9A Satellite (9° E)
EARS On Transponder TP63: 11976.82 MHz
Meteosat 8 (RSS) Off Transponder TP63: 11976.82 MHz
Meteosat 9 Off Transponder TP63: 11976.82 MHz
Meteosat 10 On Transponder TP63 11976.82 MHz
DWDSAT On Transponder TP63: 11976.82 MHz
EPS(Metop-A) On Transponder TP63: 11976.82 MHz
EPS(Metop-B) On Transponder TP63: 11976.82 MHz
Jason On Transponder TP63: 11976.82 MHz
CHANGES SINCE LAST REPORT.
Meteosat 8 (RSS) Note updated.
Meteosat 7 IODC Note updated.
Metop and NOAA Global Data Service Note updated.
Third-Party Data and Products Note added.
Jason-2 Note added.
Future Events Note updated.
THIS WEEK AND FUTURE POSSIBLE EVENTS.
GENERAL NOTE.
25 February 2013 - 06 March 2013.
Sun interference may affect the EUMETCast broadcast satellites.
Users might experience lower signal margin or outages on EUMETCast.
The exact times and durations of the signal degradation or outages depend
on
the reception location.
For full details, please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/828756?l=en
Meteosat Straylight Predictions for Winter/Spring 2013 available on
EUMETSAT
Website:
http://www.eumetsat.int/Home/Main/ServiceStatus/index.htm?l=en
(See Section "Operational Schedules")
METEOSAT 9.
28 February 2013 - 09 March 201 07:30 UTC - 5 March 2013 09:00 UTC.
Meteosat-8 RSS yearly 1-month interruption.
5 March 2013.
Start of RSS parallel dissemination on EUMETCast of SEVIRI image data and
meteorological products from Meteosat-9.
For full details please see:
http://www.eumetsat.int/Home/Main/Satellites/SP_2012113011418367?l=en
METEOSAT 7 IODC.
01 February 2013 - 27 March 2013.
Meteosat-7 Spring 2013 eclipse season.
Slots 38 to 43 may not be available.
METOP AND NOAA GLOBAL DATA SERVICE.
New ASCAT Level 1 products currently available on EUMETCast, in parallel
to
the operational ASCAT Level 1 products.
Users wishing to receive the parallel data stream should register with the
User Service Helpdesk (ops@...).
For full details, please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/829109?l=en
15 February 2013 - 19 March 2013.
Metop-B - GRAS Parameters Optimisation.
Outage of GRAS GDS Level 1 products during this period.
2 March 2013 - 5 March 2013.
Metop-B - ASCAT external calibration.
Short outages of the ASCAT GDS Level 1, soil moisture and global and
regional winds products can be expected.
2 March 2013 07:16 UTC orbit 2353
3 March 2013 18:17 UTC orbit 2374
4 March 2013 08:15 UTC orbit 2382
5 March 2013 19:15 UTC orbit 2403
4 March 2013 09:00 - 16:00 UTC.
Essential ground segment maintenance.
During this maintenance period there is a risk of short interruption or
delay of all METOP and NOAA products.
4 March 2013 - 14 March 2013.
GOME-2 Metop-A/B tandem operation test:
4 March 2013 - 11 March 2013.
Metop-B - GOME-2 reduced swath mode configuration (960km).
7 March 2013 - 14 March 2013.
Metop-A - GOME-2 reduced swath mode configuration (960km).
11 March 2013.
Metop-B - GOME-2 back to nominal configuration (1920km).
14 March 2013.
Metop-A - GOME-2 back to nominal configuration (1920km).
This will not affect level 1 product quality but will reduce the daily
spatial coverage for Metop-A and B GOME-2
data during the indicated reduced swath configuration periods.
05 March 2013 10:00 UTC - 06 March 2013 02:00 UTC.
06 March 2013 04:00 UTC - 08 March 2013 10:00 UTC.
METOP-B IASI External Calibration/Validation.
IASI GDS Level 1C products will be unavailable during this period.
06 March 2013.
IASI L2 Processor update.
This fixes a bug affecting the cloud top temperature in the Metop-A IASI
Level 2 products
06 March 2013.
Routine update of the SSES (Single Sensor Error Statistic) bias and
standard
deviations in line with GHRSST
(Group for High Resolution Sea Surface Temperature) recommendations. The
quality levels 2 to 5 have been aligned
with OSI-SAF quality level usage where quality level 2 is now defined as
cloudy or bad by the application of new
TCWV (Total Column Water-Vapour) thProg written by Roger Barker,
G4IDE/G8MZX, Silent Key 09/09/04)
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